Automatic drain and oiling system for deep-well pumps.



A. C. PAULSMEIER.' v AUTOMATIC DRAIN AND OILING SYSTEM FOR DEEP WELL PUMPS.

APPLICATION FILED MAY 12, 1914.

' Patented Dec. 14-, 1915.

msam.

WITNESSES: IN ICISIOR Q! 667 1 @Zaazzzezisw deep u'el] pump of lhecentritugal type, 2. '3-5 i sorrel Z mu ALBERT C. RAULSMEIER, 0F ALAMEDA, CALIFORNIA ASSIGNOR T0 BYRON JACKSON IRON "0 1013113, SAN FRANGISCQ, CALIFQRNIA, A CORPORATION OF CALIFQRNIA.

Specification of Letters Patent.

Patented lDeo, 11915 Application filed 12,19 I}. Seria1No.-888,10l.

To (ZZZ whom it may concern: 7

die it known that L ALBERT C. Pen-Ls? MEIER, a citizen of the United States, i'esid-. ing at Alameda, in the county of Alameda and State of California, have invented new and useful Improvements ,in Automatic Draip and Oiling Systems for Deep-Well Pumps, of which the following is a specification.

This invention relates to an automaticdrain and oiling system for deep Well pumps.

It is one of the objects of the present in- -vention to provide a gravity feed lubricat-' ing system, which is so constructed and corinected with 'a deep well pump that an oil trap or pocket will be formed at the upper end of each hearing within the shaft tube of the pump, thus insuring a liberal suppiy of lubricant at each bearing.

Another objectof the invention is to provide a draining system, in connection with the shaft tube of the pump, by which all leakage water and used or superfluous oil may be automatically discharged Further objects will hereinafter appear.

The invention consists of the partsand the construction and combination of parts as hereinafter more fully described and :lain'ied, having reference to the accompanying drawing, in which the figure is a vertical central section of a deep Well pump showing the application of the invention.

Referring to the drawing. A indicates a the discharge pipe 3 the pump shaft rcvolvcd by any suitable means (not here shown}, and 4 the shaft tube in which tube couplings and bearings 6' are mounted. The upper end of the shaft is provided w'th a tube gland 7 and a thrust bearing 8 of the usual construction. The pump, tube and shaft, with connected parts, are otherwise supported in the usual manner by an annular housing, indicated at 9. Suitably supported on one side of the housing is an oil reservoir or tank 10, and connecting said tank with the tube gland Y is a pipe 11 having a controlling valve 12.

Suitably formed iu each bearing is an oil duct or passage 13, and secured in the upper end of each duct is a pipe nipple 14 which extends a slight distance above the upper end of each bearing to form a trap to trap a predetermined quantity of 011.

T he duct 13, Wl'hl; the connected nipple l4, forznsa drainage passage hetweeneach bear-- ing and is provided for the purpose nicer rying the ovcrflow'of oil from onebearing down to the succeeding bearing etc. Suitahly secured upon the drain flange 15 of the pump is a suitable form of check-valve 16 and forming a communication between the checlevalve and the oil duct 13, in the lower shaft bearing", is a passage 17.

The operation of the lubricating part of the system Will be as follows: Valve 12 is opened a sufiicient distance to give the reu uiredfeed or drip of oil. This is conveyed by the pipe 11 to the tube'gland 7, which is mounted on the upper end of the shaft tube. The oil is here perinitteclto drain down through the inner section of the tube and will consequently accumulate on top of the upper shaft bearing 13 until a sufficient; amount has collected to overflow through the nipple'll. The overflow oil is thus per- -n1itted to escape through the nipple 1 and the duct 13 and will consequently drain down through the second section or column of the shaft tube Where it will again collect on the upper side oi?- the second hearing. The oil is thus collected and conveyed from one bearing to another down through the several tube sections and bearings and is inally allowed to escape through the duct 13 in the lower shaft bearing and drain toward the check-valve 16. The provision of the nipples 14, with relation to the oil ducts in the shaft bearings, causes the oil to collect or become trapped at the upper end of each bearing. A liberal supply of lubricant is thus maintained above each bearing.

A considerable amount of Water may nocumulate Within the shaft tube While the pump is remaining inactive, the Water level in the Well and tube being the same. But starting" the pump and lowering the Well water level causes a corresponding and automatic reduction of the Water level Within the tube until the Well Water level has been reduced below the position or": the checkvalve 16. The leakage Water is thus auto matically drained and discharged from the pump through the valve l6 the moment the water level Within the Well has become sufficiently bWQZGtl to uncover the valve. Perfect lubrication is assured at all times.

Having thus described any invention, what ple secured in-each-i oil passage proJecting above the upper end of each bearing whereby a predetermined quantity of oil is trapped above each bearing andthe surplus flows through said nipple and passage ,to sueces sive bearings below an oil reservoir connect ed with the upper end of the shaft inclosing tube, and a check-valve connected with the lower end-0f said tube through which leakage water may discharge. I 5

2. In combination with a centrifugal pump and its shaft, a member inclosing the shaft, a plurality of bearings for the shaft at intervals in the member each formed to allow how of oil successively from the upper to the lower bearings, means for delivering oil to the upper end of said member, and automatic means to allow leakage water to discharge from the lower end of said member.

3. In combination with a centrifugal pump 4 1d its shaft, means inclosing the shaft, means to feed oil to the inclosing means, means to intercept the fed oil and to apply same to the shaft and automatic means to discharge leakage water from the lower end. of said-inclosing means. Y

- 1-,ieap1a 4c. In combination with a centrifugal pump and its shaft, inclosing means for the shaft, a plu ality of bearings for the shaft arranged at intervals in the inclcsing means and each formed to trap a predetermined quantity of oil so as to retain the shaft submerged at each of said'plurality of hearings and to feed the excess to the next lowest bearing, and automatic means adjacent the lowermost bearing to allow leakage water and superfluous oil -to discharge from said member.

In combination with a centrifugal pump and its shaft, inclosing means for the shaft, lubricating means for the shaft arranged at intervals in the inclosing means and each formed to retain'a predetermined quantity of oil and to feed the excess to the next lowest bearing, and means for automatically discharging excess oil from the bottom of said inclosing meansduring the pump operation whereby to allow complete control of the several quantities of oil within said inclosing means.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses. 

